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package com.sun.enterprise.webservice;

import com.sun.enterprise.server.event.ApplicationLoaderEventListener;
import com.sun.enterprise.server.event.ApplicationEvent;
import com.sun.enterprise.server.event.EjbContainerEvent;
import com.sun.enterprise.deployment.*;
import com.sun.logging.LogDomains;

import java.util.List;
import java.util.Map;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.logging.Logger;
import java.util.logging.Level;

/**
 * Class that listens for deployment notifications. This class is used to store
 * the webservice endpoints in the EndpointRegistry that are later used in the
 * creation of JBIAdapter's.
 * Related Issue: 6519371
 * 
 * @author Vikas Awasthi
 */
public class ApplicationLoaderEventListenerImpl
        implements ApplicationLoaderEventListener {

    private final Logger logger = LogDomains.getLogger(LogDomains.SERVER_LOGGER);

    public void handleApplicationEvent(ApplicationEvent event) {
        Application application = event.getApplication();

        if(event.getEventType() == ApplicationEvent.AFTER_APPLICATION_LOAD) {
            List<WebServiceEndpoint> list = new ArrayList<WebServiceEndpoint>();
            for (Object bundle : application.getWebBundleDescriptors()) {
                WebServicesDescriptor webServices =
                        ((WebBundleDescriptor) bundle).getWebServices();
                list.addAll(webServices.getEndpoints());
            }
            if(!list.isEmpty()) {
                String appName = application.getRegistrationName();
                endpoints.put(appName,list);
                logger.log(Level.FINE,
                        "serviceengine.websvc_endpoints_added",
                        new Object[]{appName});
            }
        }

        if(event.getEventType() == ApplicationEvent.AFTER_APPLICATION_UNLOAD) {
            endpoints.remove(application.getRegistrationName());
        }
    }

    public void handleEjbContainerEvent(EjbContainerEvent event) {
    }

    public List<WebServiceEndpoint> getEndpoints(String appName) {
        return endpoints.get(appName);
    }

    /**
     * During appserver restart applications are loaded before Java EE service
     * engine is installed. This method will be called once during the
     * startup of Java EE service engine. At this time, we need to merge all
     * the endpoints collected so far with the map maintained in
     * EndpointRegistry.
     */
    public void mergeEndpointRegistry(Map<String,
            List<WebServiceEndpoint>> ws_endpoints) {
        ws_endpoints.putAll(endpoints);
        endpoints = ws_endpoints;
    }

    private Map<String, List<WebServiceEndpoint>> endpoints =
                                new HashMap<String, List<WebServiceEndpoint>>();

}